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Cultivation of Business Students Under the Background of Ideological and Political Education:Optimization Strategies for Project-based Learning
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作者 Haiwen Long 《Journal of Contemporary Educational Research》 2024年第11期153-158,共6页
The paper explores the strategy of optimizing the cultivation of new business-applied talents through project-based teaching innovation under the background of curriculum ideological and political education.The paper ... The paper explores the strategy of optimizing the cultivation of new business-applied talents through project-based teaching innovation under the background of curriculum ideological and political education.The paper emphasizes that the core socialist values should be integrated into business education.Improving students’moral literacy and social responsibility is an important goal of cultivating new business talents.The study pointed out that in the process of project-based learning,innovative methods such as virtual reality technology,cross-cultural cooperation and diversified evaluation systems can effectively cultivate applied talents that meet the development needs of the new era.The paper also proposed specific strategies in the project implementation and reflection links to promote students’self-reflection and internalization of values. 展开更多
关键词 Business education Ideological and political education Project-based learning
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Effective Utilization of Government-Provided CTI by Small Businesses within the Defense Industrial Base
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作者 Josiah Dykstra Lawrence A. Gordon +2 位作者 Martin P. Loeb Benjamin Wall Lei Zhou 《Journal of Information Security》 2024年第2期196-217,共22页
There are two broad objectives of the research reported in this paper. First, we assess whether government-provided cyber threat intelligence (CTI) is helpful in preventing, or responding to, cyber-attacks among small... There are two broad objectives of the research reported in this paper. First, we assess whether government-provided cyber threat intelligence (CTI) is helpful in preventing, or responding to, cyber-attacks among small businesses within the U.S. Defense Industrial Base (DIB). Second, we identify ways of improving the effectiveness of government-provided CTI to small businesses within the DIB. Based on a questionnaire-based survey, our findings suggest that government-provided CTI helps businesses within the DIB in preventing, or responding to, cyber-attacks providing a firm is familiar with the CTI. Unfortunately, a large percentage of small firms are not familiar with the government-provided CTI feeds and consequently are not utilizing the CTI. This latter situation is largely due to financial constraints confronting small businesses that prevent firms from having the wherewithal necessary to effectively utilize the government-provided CTI. However, we found a significant positive association between a firm’s familiarity with the government-provided CTI and whether a firm is being periodically reviewed by the Defense Counterintelligence and Security Agency (DCSA) or is compliant with the Cybersecurity Maturity Model Certification (CMMC) program. The findings from our study also show that the participating firms believe that external cyber threats are more likely to be the cause of a future cybersecurity breach than internal cybersecurity threats. Finally, our study found that the portion of the IT budget that small businesses within the DIB spend on cybersecurity-related activities is dependent on the perception that a firm would be the target of an external cyber-attack. 展开更多
关键词 Government-Provided CTI Small Businesses Defense Industrial Base
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Business Model Innovation of Small and Medium-sized Enterprises on the Basis of Value Creation Logic of Balanced Score Card
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作者 Yang Yuhong Ni Ning Ni Na 《学术界》 CSSCI 北大核心 2015年第11期313-317,共5页
Small and medium-sized enterprises have developed rapidly under the guidance and support of the national industrial policy.Because of the influence of the post financial crisis,the rate of the global economy developme... Small and medium-sized enterprises have developed rapidly under the guidance and support of the national industrial policy.Because of the influence of the post financial crisis,the rate of the global economy development decreased and the market competition increased,the profit of small and medium-sized enterprises is on the decline or even in a loss.The paper,based on the value creation logic of Balanced Score Card,put forward that we should,with the Differentiation Strategy as the basis,using Strategy Map and Cascade Strategy,integrate the key internal procedures to increase the strategic preparation of intangible assets to guide the business model innovation of small and medium-sized enterprises and promote the rapid development of small and medium-sized enterprises. 展开更多
关键词 中小企业 平衡计分卡 商业模式 逻辑 价值 创新 差异化战略 产业政策
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Fuzzy State Comprehensive Evaluation of Living Basis for Small Businesses
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作者 陈亚荣 汤兵勇 李令遐 《Journal of Donghua University(English Edition)》 EI CAS 2002年第4期57-61,共5页
The problem of comprehensive evaluation of liying basis for small businesses is discussed, based on fuzziness of index, a corresponding fuzzy state comprehensive evaluation method is presented; the good results that i... The problem of comprehensive evaluation of liying basis for small businesses is discussed, based on fuzziness of index, a corresponding fuzzy state comprehensive evaluation method is presented; the good results that is,the evaluation of living basis for small business are illustrated by a simulated example. 展开更多
关键词 small business LIVING basis FUZZY state comprehensive evaluation
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Analysis of Satisfaction with Business Cost in Shanghai Using Structural Equation Modeling Approach
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作者 郭彦 孙明贵 《Journal of Donghua University(English Edition)》 EI CAS 2015年第4期688-694,共7页
Tracing the origins of business cost, to define the satisfaction assessment factors on the business cost in Shanghai was investigated in this paper. Arguing that these effects: a single low cost is not only the criter... Tracing the origins of business cost, to define the satisfaction assessment factors on the business cost in Shanghai was investigated in this paper. Arguing that these effects: a single low cost is not only the criterion determining satisfaction. Other important factors, such as enterprise internal cognitive attitude,stability of the external environment,the quality of perceptions of government services can affect satisfaction. Within structural equation modeling( SEM) approach, six sets of hypotheses are drawn up and tested with a sample of 338 enterprises using questionnaires. Additionally,the analyses of findings introduce the crucial importance of these features in the assessment of satisfaction with business cost in Shanghai. Finally, the results show that internal cognitive has a positive impact on satisfaction. Stability of the external environment has a significant relationship with the effectiveness of government services. Stability of the external environmeat and the effectiveness of government servises have a positive effect on satisfaction. 展开更多
关键词 business cost structural equation modeling(SEM) SATISFACTION
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Possibilities of Business Restructuring Under the Recession
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作者 IneseMavlutova Bary Mavlutov 《Journal of Modern Accounting and Auditing》 2011年第3期227-238,共12页
The decrease in business activity and the fall in the production volume in the sectors of economy relying on long-term crediting is characteristic feature of the modern recessions. The pessimistic expectations of entr... The decrease in business activity and the fall in the production volume in the sectors of economy relying on long-term crediting is characteristic feature of the modern recessions. The pessimistic expectations of entrepreneurs concerning product demand leads to falling direct investment into business despite unlimited investment opportunities due to the developed capital markets nowadays. As a result it has created the opportunity for the development of such business restructuring types as mergers and acquisitions. Potential investors are different and their investment motivation is different, but the goal is the same--to increase the value of the business and its efficiency as a result of mergers and acquisitions. Utilizing borrowed capital for acquisitions of enterprises has many advantages. However, purchasable enterprises are exposed to several financial risk factors. 展开更多
关键词 RECESSION business restructuring mergers ACQUISITIONS company's equity value company's financial performance
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Analysis of factors influencing carbon emissions in the Yangtze River Delta region and projections of carbon peak scenarios 被引量:1
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作者 SHI Xiong-tian WU Feng-qing +1 位作者 CHEN Yang DAI Li-li 《Ecological Economy》 2024年第1期2-24,共23页
Based on the supply-side perspective,the improved STIRPAT model is applied to reveal the mechanisms of supply-side factors such as human,capital,technology,industrial synergy,institutions and economic growth on carbon... Based on the supply-side perspective,the improved STIRPAT model is applied to reveal the mechanisms of supply-side factors such as human,capital,technology,industrial synergy,institutions and economic growth on carbon emissions in the Yangtze River Delta(YRD)through path analysis,and to forecast carbon emissions in the YRD from the baseline scenario,factor regulation scenario and integrated scenario to reach the peak.The results show that:(1)Jiangsu's high carbon emission pattern is the main reason for the YRD hindering the synergistic regulation of carbon emissions.(2)Human factors,institutional factors and economic growth factors can all contribute to carbon emissions in the YRD region,while technological and industrial factors can generally suppress carbon emissions in the YRD region.(3)Under the capital regulation scenario,the YRD region has the highest level of carbon emission synergy,with Jiangsu reaching its peak five years earlier.Under the balanced regulation scenario,the YRD region as a whole,Jiangsu,Zhejiang and Anhui reach the peak as scheduled. 展开更多
关键词 Yangtze River Delta carbon peaking scenario forecasting STIRPAT model
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How selected primary schools in rural New Zealand manage their financial resources of limited government funding in order to effectively meet their schools objectives
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作者 Crabtree Jen France Adrian 《Journal of Modern Accounting and Auditing》 2010年第6期14-27,共14页
This study evaluates the extent to which primary schools in a region of New Zealand are challenged by limited funds to enable the effective management and performance of their school. The study involved interviews wit... This study evaluates the extent to which primary schools in a region of New Zealand are challenged by limited funds to enable the effective management and performance of their school. The study involved interviews with school principals and analysis of their schools' financial statements. The aim of this project is to gain a current understanding of the issues and challenges facing primary schools in a defined region (Waikato) to see whether the trends identified in national research studies, confirms the problem that schools are underfunded. The results of the current study identified the issues experienced by the Waikato schools and in most cases supported previous research findings. The findings of the current study also suggest that schools share the dilemmas associated with limited government funding and rely significantly on local funding sources to achieve their basic objectives. Although schools may be effective in the management of their school objectives, there is more government funding required to relieve the pressures and challenges. 展开更多
关键词 SCHOOLS budgets FUNDING management FINANCE
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The Intercultural Aspect in Business: An Approach to Communicative Misunderstandings in the Professional Interactions in Business in Morocco
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作者 Amina SAOUSSANY 《Sino-US English Teaching》 2017年第5期321-332,共12页
What are the main difficulties in intercultural communication encountered by the students of the National School of Business and Management of Agadir (ENCGA)/Morocco during their interaction with French native manag... What are the main difficulties in intercultural communication encountered by the students of the National School of Business and Management of Agadir (ENCGA)/Morocco during their interaction with French native managers in Moroccan companies? This is the main question we will try to answer in the present article. From two different methods: the participant observation and sound recording of communicative interactions, the study has addressed the fundamental issues related to the problems of communication with the other in an intercultural professional environment. The conclusions drawn from the analysis of the data suggest some pedagogical readjustments to improve the teaching of intercultural communication in the ENCGA, 展开更多
关键词 imercultural communication ENCGA MISUNDERSTANDING interaction
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Development of Educational Programs for System Creators and Business Producers in Future Strategy Design Based on Action Project Group Activities through Industry-University Cooperation
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作者 Kinya Tamaki Masahiro Arakawa +1 位作者 Maki Arame Yoshiyuki Ono 《Journal of Mechanics Engineering and Automation》 2019年第7期243-247,共5页
Our Japanese industry-university project group of Aoyama Gakuin University investigated and studied new educational programs to cultivate“future strategy design”human resources over several years.The purpose of this... Our Japanese industry-university project group of Aoyama Gakuin University investigated and studied new educational programs to cultivate“future strategy design”human resources over several years.The purpose of this research paper is to describe two types of educational programs.The first program proposes the system creator,which is capable of new product design and innovative management that use advanced technologies such as internet of things(IoT),artificial intelligence(AI),and augmented and virtual reality.The second program proposes the business producer that is capable of platform service business modeling,product development and strategy,and customer service.The characteristics of these programs involve applying new educational methods to combine project-based learning(PBL)and active learning. 展开更多
关键词 PBL active learning new product development platform service IOT AI
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Effect of Product Differemiation on Business Model Performance in B2B Market
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作者 XU Yafu ZHAO Xiaokang WANG Weihong 《International English Education Research》 2018年第1期54-57,共4页
Focusing on B2B market, this paper studies the effect of product differentiation on business model perlbrmance. After interviewing several experts and analyzing numbers of distributing questionnaires. the author disco... Focusing on B2B market, this paper studies the effect of product differentiation on business model perlbrmance. After interviewing several experts and analyzing numbers of distributing questionnaires. the author discovered that product differentiation has a positive effect on business model performance. Through SEM. it is revealed that product differentiation at each level have positive effect on business model, with different effect weight. The main contributions of this research are summarized as follows: Firstly, the proposed model of the product differentiation on business model performance lays the basis for scientific measurement of product differentiation and its effect on business model performance; Secondly, this research ranks the importance of product differentiation at different level in B2B market; Finally, this research provides a good reference for enterprises to update their product strategy for better business model performance. 展开更多
关键词 Product differentiation Business Model Performance B2B
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Research on Alliance Decision of Dual-Channel Remanufacturing Supply Chain Considering Bidirectional Free-Riding and Cost-Sharing
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作者 Lina Dong Yeming Dai 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第9期2913-2956,共44页
This study delves into the formation dynamics of alliances within a closed-loop supply chain(CLSC)that encom-passes a manufacturer,a retailer,and an e-commerce platform.It leverages Stackelberg game for this explorati... This study delves into the formation dynamics of alliances within a closed-loop supply chain(CLSC)that encom-passes a manufacturer,a retailer,and an e-commerce platform.It leverages Stackelberg game for this exploration,contrasting the equilibrium outcomes of a non-alliance model with those of three differentiated alliance models.The non-alliance model acts as a crucial benchmark,enabling the evaluation of the motivations for various supply chain entities to engage in alliance formations.Our analysis is centered on identifying the most effective alliance strategies and establishing a coordination within these partnerships.We thoroughly investigate the consequences of diverse alliance behaviors,bidirectional free-riding and cost-sharing,and the resultant effects on the optimal decision-making among supply chain actors.The findings underscore several pivotal insights:(1)The behavior of alliances within the supply chain exerts variable impacts on the optimal pricing and demand of its members.In comparison to the non-alliance(D)model,the manufacturer-retailer(MR)and manufacturer-e-commerce platform(ME)alliances significantly lower both offline and online resale prices for new and remanufactured goods.This adjustment leads to an enhanced demand for products via the MR alliance’s offline outlets and the ME alliance’s online platforms,thereby augmenting the profits for those within the alliance.Conversely,retailer-e-commerce platform(ER)alliance tends to increase the optimal retail price and demand across both online and offline channels.Under specific conditions,alliance behavior can also increase the profits of non-alliance members,and the profits derived through alliance channels also exceed those from non-alliance channels.(2)The prevalence of bidirectional free-riding behavior largely remains constant across different alliance configurations.Across these models,bidirectional free-riding typically elevates the equilibrium prices in offline channel while negatively affecting the equilibrium prices in other channel.(3)The effect of cost-sharing shows relative uniformity across the various alliance models.Across all configurations,cost-sharing tends to reduce the manufacturer’s profits.Nonetheless,alliances initiated by the manufacturer can counteract these negative impacts,providing a strategic pathway to bolster CLSC profitability. 展开更多
关键词 Dual-channel remanufacturing supply chain ALLIANCE remanufactured products bidirectional free-riding cost-sharing
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How can technology and efficiency alleviate the dilemma of economic growth and carbon emissions in China's industrial economy? A metafrontier decoupling decomposition analysis
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作者 Miao Wang Chao Feng 《Petroleum Science》 SCIE EI CAS CSCD 2024年第2期1415-1428,共14页
This paper attempts to explore the decoupling relationship and its drivers between industrial economic increase and energy-related CO_(2) emissions(ICE). Firstly, the decoupling relationship was evaluated by Tapio ind... This paper attempts to explore the decoupling relationship and its drivers between industrial economic increase and energy-related CO_(2) emissions(ICE). Firstly, the decoupling relationship was evaluated by Tapio index. Then, based on the DEA meta-frontier theory framework which taking into account the regional and industrial heterogeneity and index decomposition method, the driving factors of decoupling process were explored mainly from the view of technology and efficiency. The results show that during2000-2019, weak decoupling was the primary state. Investment scale expansion was the largest reason hindering decoupling process of industrial increase from ICE. Both energy saving and production technology achieved significant progress, which facilitated the decoupling process. Simultaneously, the energy technology gap and production technology gap among regions have been narrowed, and played a role in promoting decoupling process. On the contrary, both scale economy efficiency and pure technical efficiency have inhibiting effects on decoupling process. The former indicates that the scale economy of China's industry was not conducive to improve energy efficiency and production efficiency, while the latter indicates that resource misallocation problem may exist in both energy market and product market. 展开更多
关键词 China's industrial sector Decoupling process Meta-frontier DEA Index decomposition method Driving factors
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Factors affecting farmers'choice to adopt risk management strategies:The application of multivariate and multinomial probit models
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作者 Jamal Shah Majed Alharthi 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第12期4250-4262,共13页
This study investigates the factors that impact farmers'adoption of risk management strategies(RMS)in Pakistan during times of uncertainty.The study examines farmers'adoption of RMS using both multinomial prob... This study investigates the factors that impact farmers'adoption of risk management strategies(RMS)in Pakistan during times of uncertainty.The study examines farmers'adoption of RMS using both multinomial probit(MNP)and multivariate probit(MVP).Data were collected from 382 farmers sampled from four districts in KhyberPakhtunkhwa(KP)province of Pakistan via a multistage sampling technique.This study utilizes the MNP model,considering the assumption of Independence of Irrelevant Alternatives(IIA)and incorporating correlated error terms.The objective is to understand farmers'behavior in risky situations and determine if there is heterogeneity.Results are compared with the MVP model to assess robustness and gain deeper understanding of farmers'decisionmaking processes.The research findings reveal that our results are robust,and farmers behave homogeneously in various RMS scenarios.Farmers adopt RMS individually or in combination to mitigate the adverse effects of natural calamities on their livelihood.The risk-averse farmers,who perceive weather-related risks as a threat,access credits and information,and have farms close to a river are more likely to adopt RMS,irrespective of the format of the strategies available.Moreover,the predicted probabilities and correlation of the RMS and RM categories have strengthened our model estimation.These findings provide insights into the behavior of farmers in adopting RMS which are helpful for policymakers and stakeholders in developing strategies to mitigate the impacts of natural calamities on farmers. 展开更多
关键词 multinomial probit model multivariate probit model risk management strategies risk-attitude risk perception
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Dynamic analysis of major public health emergency transmission considering the dual-layer coupling of community–resident complex networks
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作者 杨鹏 范如国 +1 位作者 王奕博 张应青 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第7期158-169,共12页
We construct a dual-layer coupled complex network of communities and residents to represent the interconnected risk transmission network between communities and the disease transmission network among residents. It cha... We construct a dual-layer coupled complex network of communities and residents to represent the interconnected risk transmission network between communities and the disease transmission network among residents. It characterizes the process of infectious disease transmission among residents between communities through the SE2IHR model considering two types of infectors. By depicting a more fine-grained social structure and combining further simulation experiments, the study validates the crucial role of various prevention and control measures implemented by communities as primary executors in controlling the epidemic. Research shows that the geographical boundaries of communities and the social interaction patterns of residents have a significant impact on the spread of the epidemic, where early detection, isolation and treatment strategies at community level are essential for controlling the spread of the epidemic. In addition, the study explores the collaborative governance model and institutional advantages of communities and residents in epidemic prevention and control. 展开更多
关键词 propagation dynamics complex networks public health events community structure
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Central environmental protection inspection and carbon emission reduction: A tripartite evolutionary game model from the perspective of carbon neutrality
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作者 Zhen-Hua Zhang Dan Ling +2 位作者 Qin-Xin Yang Yan-Chao Feng Jing Xiu 《Petroleum Science》 SCIE EI CAS CSCD 2024年第3期2139-2153,共15页
Since the carbon neutrality target was proposed,many countries have been facing severe challenges to carbon emission reduction sustainably.This study is conducted using a tripartite evolutionary game model to explore ... Since the carbon neutrality target was proposed,many countries have been facing severe challenges to carbon emission reduction sustainably.This study is conducted using a tripartite evolutionary game model to explore the impact of the central environmental protection inspection(CEPI)on driving carbon emission reduction,and to study what factors influence the strategic choices of each party and how they interact with each other.The research results suggest that local governments and manufacturing enterprises would choose strategies that are beneficial to carbon reduction when CEPI increases.When the initial willingness of all parties increases 20%,50%—80%,the time spent for the whole system to achieve stability decreases from 100%,60%—30%.The evolutionary result of“thorough inspection,regulation implementation,low-carbon management”is the best strategy for the tripartite evolutionary game.Moreover,the smaller the cost and the larger the benefit,the greater the likelihood of the three-party game stability strategy appears.This study has important guiding significance for other developing countries to promote carbon emission reduction by environmental policy. 展开更多
关键词 Central environmental protection INSPECTION Local government Manufacturing enterprise Tripartite evolutionary game Carbon emission reduction
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Study on site selection planning of urban electric vehicle charging station
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作者 刘娜 CHENG Jiaxin DUAN Yukai 《High Technology Letters》 EI CAS 2024年第1期75-84,共10页
The large-scale development of electric vehicles(EVs)requires numerous charging stations to serve them,and the charging stations should be reasonably laid out and planned according to the charging demand of electric v... The large-scale development of electric vehicles(EVs)requires numerous charging stations to serve them,and the charging stations should be reasonably laid out and planned according to the charging demand of electric vehicles.Considering the costs of both operators and users,a site selection model for optimal layout planning of charging stations is constructed,and a queuing theory approach is used to determine the charging pile configuration to meet the charging demand in the planning area.To solve the difficulties of particle swarm global optimization search,the improved random drift particle swarm optimization(IRDPSO)and Voronoi diagram are used to jointly solve for the optimal layout of electric vehicles.The final arithmetic analysis verifies the feasibility and practicality of the model and algorithm,and the results show that the total social cost is minimized when the charging station is 9,the location of the charging station is close to the center of gravity and the layout is reasonable. 展开更多
关键词 charging station electric vehicle(EV) improved random drift particle swarm optimization(IRDPSO) optimal planning
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Spatial Differentiation and Convergence Trend of High-quality Development Level of China’s Tourism Economy
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作者 CAO Shanshan HE Zhaoli +2 位作者 NIU Jinlan WANG Songmao ZHAO Lei 《Chinese Geographical Science》 SCIE CSCD 2024年第2期230-249,共20页
This paper aims to interpret the connotation of high-quality development of tourism economy(HQTE)from the perspective of the new development concepts of innovation,coordination,green,openness and sharing,and then to e... This paper aims to interpret the connotation of high-quality development of tourism economy(HQTE)from the perspective of the new development concepts of innovation,coordination,green,openness and sharing,and then to evaluate the spatial differenti-ation of China’s HQTE based on provincial panel data from 2009 to 2018.Specifically,we employ the spatial convergence model to ex-plore the absolute and conditionalβconvergence trends of HQTE in the whole country and the eastern,central and western regions of China.Our empirical results reveal that:1)within the decade,from 2009 to 2018,regions of China with the highest HQTE index is its eastern region followed by the central region and then the western region,but the fastest growing one is the western region of China fol-lowed by the central region and then the eastern region.2)Whether or not the spatial effect is included,there are absolute and condition-alβconvergence in HQTE in the whole country and aforementioned three regions.3)The degree of government attention as well as the level of economic development and location accessibility are the positive driving factors for the convergence of HQTE in the whole country and the three regions.The degree of marketization and human capital have not passed the significance test either in the whole country or in the three regions.The above conclusions could deepen the understanding of the regional imbalance and spatial conver-gence characteristics of HQTE,clarify the primary development objects,and accomplish the goal of China’s HQTE. 展开更多
关键词 new development concepts high-quality development of tourism economy(HQTE) spatial convergence China
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Charting the Future of Nuclear Energy Roadmaps for Fission and Fusion Technologies
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作者 Farhang Mossavar-Rahmani Bahman Zohuri 《Journal of Energy and Power Engineering》 CAS 2024年第3期88-92,共5页
As the world faces increasing energy demands and concerns about climate change,nuclear power is experiencing a resurgence as a viable and sustainable energy source.This article explores the strategic initiatives conce... As the world faces increasing energy demands and concerns about climate change,nuclear power is experiencing a resurgence as a viable and sustainable energy source.This article explores the strategic initiatives concerning the advancement of nuclear technologies,highlighting the prompt adoption of SMRs(small modular reactors),the ongoing advancements in Generation IV reactors in the medium term,and the long-term aspirations linked to nuclear fusion.SMRs offer enhanced safety,economic viability,and flexible deployment alternatives,making them an attractive solution for meeting pressing energy demands.In the medium term,Generation IV reactors are anticipated to improve efficiency,sustainability,and safety,effectively tackling the challenges associated with conventional fission reactors.However,significant challenges lie ahead,including public perception,regulatory hurdles,financial barriers,and the need for a skilled workforce.By addressing these challenges,nuclear power can play a pivotal role in creating a sustainable and reliable energy future,contributing significantly to global efforts in climate change mitigation. 展开更多
关键词 Nuclear power SMRs Generation IV reactors nuclear fusion SUSTAINABILITY climate change energy demand public perception regulatory framework workforce development
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The Aharonov-Bohm Effect: An Exploration of Quantum Interference and Electromagnetic Potentials
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作者 Bahman Zohuri 《Journal of Energy and Power Engineering》 CAS 2024年第3期79-87,共9页
The AB(Aharonov-Bohm)effect is a pivotal quantum mechanical phenomenon that illustrates the fundamental role of the electromagnetic vector potential A in determining the phase of a charged particle’s wave function,ev... The AB(Aharonov-Bohm)effect is a pivotal quantum mechanical phenomenon that illustrates the fundamental role of the electromagnetic vector potential A in determining the phase of a charged particle’s wave function,even in regions where the magnetic field B is zero.This effect demonstrates that quantum particles are influenced not only by the fields directly present but also by the potentials associated with those fields.In the AB effect,an electron beam is split into two paths,with one path encircling a solenoid and the other bypassing it.Despite the absence of a magnetic field in the regions traversed by the beams,the vector potential A associated with the magnetic flux Φ through the solenoid induces a phase shift in the electron’s wave function.This phase shift,quantified by △φ=qΦ/hc,manifests as a change in the interference pattern observed in the detection screen.The phenomenon underscores the principle of gauge invariance in QED(quantum electrodynamics),where physical observables remain invariant under local gauge transformations of the vector and scalar potentials.This reinforces the notion that the vector potential A has a profound impact on quantum systems,beyond its classical role.This article outlines the AB effect,including its theoretical framework,experimental observations,and implications.The focus on the role of the vector potential in quantum mechanics provides a comprehensive understanding of this important phenomenon. 展开更多
关键词 AB effect vector potential(A) magnetic flux(Φ) quantum phase shift gauge invariance electromagnetic potentials interference pattern scalar fields longitudinal waves QED
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